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Article: A novel partial lid for mechanical defeatherers reduced aerosol dispersion during processing of avian influenza virus infected poultry

TitleA novel partial lid for mechanical defeatherers reduced aerosol dispersion during processing of avian influenza virus infected poultry
Authors
Keywordsaerosol dispersion
airflow
avian influenza virus
China
computational fluid dynamics
Issue Date2019
PublisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action
Citation
PLoS One, 2019, v. 14 n. 5, p. article no. e0216478 How to Cite?
AbstractInfectious virus-laden aerosols generated during poultry processing may mediate airborne transmissions of avian influenza at live poultry markets. To develop effective control measures to reduce aerosol dispersion, we characterised the aerosol flow pattern of the mechanical defeatherers, a major source of aerosol dispersion during poultry processing at live poultry markets in China. Mechanical defeatherers create a strong air circulation during operation with inflow and outflow velocities over 1 m/s. A partial lid was designed to suppress the outflow and reduce aerosol dispersion. Computational fluid dynamics simulations confirmed that the partial lid prototype reduced the aerosol escape rate by over 65%. To validate the effectiveness of the partial lid in reducing aerosol dispersion, a field study was conducted at a retail poultry shop in Guangzhou and the concentrations of influenza viral RNA and avian 18S rRNA dispersed in air were monitored during poultry processing, with and without the use of the partial lid. At the breathing zone of the poultry worker, the use of the partial lid effectively suppressed the upward airflow and reduced the concentration of avian 18S rRNA in the air by 57%. The economic and practical partial lid can be easily implemented to reduce generation of influenza virus-laden aerosols at live poultry markets.
Persistent Identifierhttp://hdl.handle.net/10722/274534
ISSN
2017 Impact Factor: 2.766
2015 SCImago Journal Rankings: 1.395
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorWei, J-
dc.contributor.authorZhou, J-
dc.contributor.authorLiu, Y-
dc.contributor.authorWu, J-
dc.contributor.authorJin, T-
dc.contributor.authorLi, Y-
dc.contributor.authorYen, HL-
dc.date.accessioned2019-08-18T15:03:37Z-
dc.date.available2019-08-18T15:03:37Z-
dc.date.issued2019-
dc.identifier.citationPLoS One, 2019, v. 14 n. 5, p. article no. e0216478-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10722/274534-
dc.description.abstractInfectious virus-laden aerosols generated during poultry processing may mediate airborne transmissions of avian influenza at live poultry markets. To develop effective control measures to reduce aerosol dispersion, we characterised the aerosol flow pattern of the mechanical defeatherers, a major source of aerosol dispersion during poultry processing at live poultry markets in China. Mechanical defeatherers create a strong air circulation during operation with inflow and outflow velocities over 1 m/s. A partial lid was designed to suppress the outflow and reduce aerosol dispersion. Computational fluid dynamics simulations confirmed that the partial lid prototype reduced the aerosol escape rate by over 65%. To validate the effectiveness of the partial lid in reducing aerosol dispersion, a field study was conducted at a retail poultry shop in Guangzhou and the concentrations of influenza viral RNA and avian 18S rRNA dispersed in air were monitored during poultry processing, with and without the use of the partial lid. At the breathing zone of the poultry worker, the use of the partial lid effectively suppressed the upward airflow and reduced the concentration of avian 18S rRNA in the air by 57%. The economic and practical partial lid can be easily implemented to reduce generation of influenza virus-laden aerosols at live poultry markets.-
dc.languageeng-
dc.publisherPublic Library of Science. The Journal's web site is located at http://www.plosone.org/home.action-
dc.relation.ispartofPLoS One-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectaerosol dispersion-
dc.subjectairflow-
dc.subjectavian influenza virus-
dc.subjectChina-
dc.subjectcomputational fluid dynamics-
dc.titleA novel partial lid for mechanical defeatherers reduced aerosol dispersion during processing of avian influenza virus infected poultry-
dc.typeArticle-
dc.identifier.emailLi, Y: liyg@hku.hk-
dc.identifier.emailYen, HL: hyen@hku.hk-
dc.identifier.authorityLi, Y=rp00151-
dc.identifier.authorityYen, HL=rp00304-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1371/journal.pone.0216478-
dc.identifier.pmid31067261-
dc.identifier.pmcidPMC6505957-
dc.identifier.scopuseid_2-s2.0-85065647784-
dc.identifier.hkuros301904-
dc.identifier.volume14-
dc.identifier.issue5-
dc.identifier.spagearticle no. e0216478-
dc.identifier.epagearticle no. e0216478-
dc.publisher.placeUnited States-

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